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Lenovo A720 manual Item # FRUs Service Part Number FRU, Motherboard

Models: A720

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	Item #	FRUs		Service Part Number (FRU	CRU ID
				#)

		Motherboard

		A720	1G_DDR3 W/HDIN W/TV1 MB	90000165	N

		A720	2G_DDR3 W/HDIN W/TV1 MB	90000166	N

		A720	1G_DDR3 W/HDIN W/O TV MB	90000167	N

		A720	2G_DDR3 W/HDIN W/O TV MB	90000168	N

		A720	1G_DDR3 W/O HDIN W/O TV1 MB	90000169	N

		A720	2G_DDR3 W/O HDIN W/O TV1 MB	90000170	N

		Intel PPT C1 HM76 Chipset		1100364	N

		CPU

	10	Intel I3-3110M 2.4G L1 3M 2cPGA Processor		102500303	N

		Intel I5-3210M 2.5G L1 3M 2cPGA Processor		102500301	N
		Intel I5-3210M 2.5G L1 3M 2cPGA Processor		102500301	N

		Intel I5-3320M 2.6G L1 3M 2cPGA Processor		102500299	N

		Intel I5-3360M 2.8G L1 3M 2cPGA Processor		102500297	N

		Intel I7-3820QM 2.7G E1 6M 4cPGA Processor		102500304	N

		Intel I7-3720QM 2.6G E1 6M 4cPGA Processor		102500306	N

		Intel I7-3612QM 2.1G E1 6M 4cPGA Processor		102500290	N

		Intel I7-3610QM 2.3G E1 6M 4cPGA Processor		102500289	N

		Intel SNB I3-2330M 2.2G 3M J1 PGA		102500017	N

		LAN

		Realtek RTL8111F		73040793	N

62IdeaCentre A720Hardware Maintenance Manual

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Lenovo A720 manual Item # FRUs Service Part Number FRU, Motherboard

Contents

IdeaCentre A720 Hardware Maintenance Manual Page IdeaCentre A720 Hardware Maintenance Manual Page Contents Iv IdeaCentre A720Hardware Maintenance Manual Important Safety Information About this manualIdeaCentre A720Hardware Maintenance Manual Electrical safety Safety informationGeneral safety IdeaCentre A720Hardware Maintenance Manual Safety inspection guide Handling electrostatic discharge-sensitive devicesSafety notices Grounding requirementsDo not To Connect To Disconnect≥18 kg 37 lbs ≥32 kg 70.5 lbs ≥55 kg 121.2 lbs Specifications General informationType IdeaCentre A720 EnvironmentIdeaCentre A720Hardware Maintenance Manual General Checkout IdeaCentre A720Hardware Maintenance Manual Using the Setup Utility Starting the Lenovo Bios Setup Utility programViewing and changing settings Using passwordsSetting, changing, or deleting a Power-On Password Administrator PasswordSetting, changing, or deleting an Administrator password Enabling or disabling a device Select Save changes and Exit from the menuSelecting or changing the startup device sequence Selecting a startup deviceSelecting a temporary startup device Exiting the Lenovo Bios Setup Utility program IdeaCentre A720Hardware Maintenance Manual Symptom-to-FRU Index Hard disk drive boot errorPower Supply Problems Error FRU/ActionPost Error Message Description/Action Post error codesUndetermined problems Locating connectors, controls and components Font viewLeft and right view Rear view Hardware components CPUIdentifying parts on the motherboard TV-Tuner card connector Battery Identifying parts on the back of the LED panel IdeaCentre A720Hardware Maintenance Manual General information Pre-disassembly instructionsReplacing hardware Replacing the power cord or power adapter To replace the power cord and power adapterReplacing the keyboard and mouse To replace the keyboard and mouseRemoving the base cover To remove the base coverReplacing the hard disk drive To replace the hard disk driveReplacing hardware Replacing a memory module Replacing the system fanTo replace a memory module To replace the system fanReplacing the heat-sink To replace the heat-sinkReplacing the CPU To replace the CPUReplacing hardware Replacing the optical drive To replace the optical driveReplacing hardware Replacing the solid state disk Replacing the optical drive eject boardTo replace the solid state disk To replace the optical drive eject boardReplacing the motherboard To replace the motherboardIdeaCentre A720Hardware Maintenance Manual Replacing the speaker system To replace the speaker systemIdeaCentre A720Hardware Maintenance Manual Replacing the TV tuner card To replace the TV tuner cardReplacing the battery To replace the batteryRemoving the hinge from the chassis To remove the hinge from the chassisIdeaCentre A720Hardware Maintenance Manual Removing the rear cover To remove the rear coverReplacing the scalar board To replace the scalar boardReplacing hardware Replacing the touch control board To replace the touch control boardReplacing the converter board To replace the converter boardReplacing the power switch board To replace the power switch boardReplacing the Bluetooth module To replace the Bluetooth moduleReplacing the Wlan card To replace the Wlan cardReplacing the camera To replace the cameraReplacing the front function board To replace the front function boardReplacing the LED panel To replace the LED panelIdeaCentre A720Hardware Maintenance Manual FRU lists Item # FRUs Service Part Number FRU MotherboardMemory Hard disk driveSolid state disk Optical disk drivePower Supply Remote controlBluetooth module Heat-sinkTouch control board KeyboardPower cords MouseMechanical Panel Back Light CableIdeaCentre A720Hardware Maintenance Manual Additional Service Information Power managementAdvanced configuration and power interface Acpi Bios Automatic Power-On features